While writing text into a Word document running on my new ASUA Windows 8 x64 machine, the display screen started flashing and after each flash a character in my document was deleted. This continued until I closed Word. This left me in the Windows 8 desktop, but there was no access to the Start Screen via mouse-to-corner. Nor was the charms bar working or available. The Win 8 desktop icons were non-responsive to mouse clicks.
So I shut the system down, and restarted via power off/on.
Upon restart, the system reported it was unable to find BIOS and failed to reboot into Windows 8.
Instead, a notice was displayed to "insert boot media."
After another power off/on restart, I pressed F2 to reach UEFI bios editor. In the editor, I found that my system hard drive was unlisted in the boot order. Instead a single drive was listed, but it did not correspond to any drive on the system. So I entered UEFI bios editor and entered the correct boot drive for UEFI. Saved the changes. Restarted the system. And it booted properly and I reached the Space Needle splash and was able to log on.
After using the system for a few hours, and using Word. I can confirm that the system seems ok and there are no evident problems.
This strange behavior I encountered using Windows 8 and Word on a new ASUS desktop with factory installed Windows 8 x64, is concerning.
Windows 8 crashed and then somehow altered the system BIOS in such a way that Windows 8 would not reboot.
I'm looking forward to all the good replies and fixes for this one.
Getting a fresh cup of coffee.
Good thing I already printed out my tax documents!